title: Pseudostone at ERCP due to juxtapapillary diverticulum.
abstract: Juxtapapillary diverticula of the duodenum are often encountered at endoscopic retrograde cholangio pancreatography (ERCP) and their presence causes a prominent "pseudostone" appearance on the retrograde cholangiogram in many patients with otherwise normal, i.e. stone-free, ducts. This may lead to inappropriate surgery if not recognised.
mesh_terms: D000368:Aged; D002760:Cholangiopancreatography, Endoscopic Retrograde; D002769:Cholelithiasis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004240:Diverticulum / Q000000981:diagnostic imaging*; D004378:Duodenal Diseases / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans